How long are the classes?

[tuck668]

No: HPFGUIDX 79643

--- In HPforGrownups at yahoogroups.com, "michaelkgidlow" 
<Veritas771 at h...> wrote:
> I always assumed a standard class was 45 minutes, but in book 5, 
> both a single period and a dubble period are refered to as being one 
> and a half hours long. What's up with this?

I'm not sure about class length, but I think that a 'single period' 
refers to just Gryffindors (or Ravenclaws/Slytherins/Hufflepuffs.. 
one house) while a 'double period' refers to having a class with two 
houses such as Gryffindors and Slytherin together (potions, for 
example).

-Anna